Flutter
Cross-platform mobile foundations that keep product quality and delivery moving together.
Engineering Manager · SleekFlow · Hong Kong
Build the system behind the product.
I lead engineering teams that turn complex product ideas into clear, durable software—across mobile, backend, and AI-enabled experiences.
Currently exploringFocus areas: Flutter mobile systems, C# platform services, AI-assisted delivery.Open to conversations about engineering leadership and purposeful AI.
Customer product
2,000+daily active users on the SleekFlow iOS and Android app.
Reliability
8% → 0.5%crash rate through stability-focused engineering and monitoring.
Performance
50%faster warm and cold app start time through targeted optimisation.
Delivery
66%less bug-triage time after introducing an AI-assisted QA workflow.
Technical terrain
From app surface to agent loop.
A practical toolkit for designing systems that teams can understand, evolve, and own.
C#
Reliable services and integrations shaped for long-term product work.
AI agents
Useful agentic workflows designed with product intent, clear boundaries, and human oversight.
Selected work
Projects that made the system stronger.
A few examples of turning product needs into more reliable experiences, clearer workflows, and maintainable technical foundations.
SleekFlow
SaaS mobile product
SleekFlow Mobile
Set mobile technical direction across a Flutter/Dart codebase, supporting messaging, contacts, broadcast, and AI-related workflows for the iOS and Android app.
Impact: 2,000+ DAU, crash rate reduced from 8% to 0.5%, and app start time improved by 50%.
SleekFlow AI
Engineering workflow
AI-Assisted QA Triage
Introduced an operational workflow that connects QA signals, issue tracking, collaboration tools, and AI assistance so teams can triage multiple problems in parallel.
Impact: bug-triage time reduced by 66%, contributing to a 50% improvement in sprint velocity.
Blue Insurance
Insurtech mobile delivery
BlueHK Mobile
Delivered a Flutter mobile app and savings-product features, while contributing to backend microservices and security integration across the web and mobile journey.
Scope: Flutter delivery, Tencent Captcha integration, and Java/Spring Boot service contribution.
How I lead
Create the conditions for good work.
- 01Build shared context.
Make the problem, trade-offs, and next decision legible so people can move with confidence.
- 02Keep quality practical.
Establish enough technical clarity to protect the product without slowing the team down.
- 03Make learning compound.
Turn delivery into a stronger system—through feedback, ownership, and thoughtful engineering habits.
Experience
Leading by staying close to the work.
Feb 2025
Present
Present
Engineering Manager
SleekFlow Technologies Limited
Lead Team MIT, a four-engineer remote team in Malaysia across the mobile apps, React-based internal tools, and backend services. Own sprint planning, 1-on-1s, reviews, hiring, mentoring, code review, and biweekly mobile releases while remaining hands-on in delivery.
Feb 2024
Feb 2025
Feb 2025
Staff Engineer / Mobile Lead
SleekFlow Technologies Limited
Set technical direction for the Flutter/Dart app; strengthened error handling and observability, improved startup performance, and led architecture improvements using BLoC, Clean Architecture, and dependency injection.
Dec 2022
Feb 2024
Feb 2024
Software Engineer → Senior Software Engineer
SleekFlow Technologies Limited
Delivered production mobile features and fixes across messaging, contact management, broadcast, and SaaS collaboration workflows; partnered closely with QA for reliable biweekly releases.
2020
2022
2022
Mobile, full-stack & DevOps roles
Blue Insurance · 5gencare · Powerhouse Technologies
Built Flutter mobile apps, backend microservices, IoT integrations, public-facing fintech products, and cloud CI/CD pipelines across AWS and GitLab Runner.
Profile
Technical enough to ask the right questions.
I’m Leung Wing Chung, Jason—an Engineering Manager and staff-level mobile/full-stack engineer with 5+ years of experience across SaaS, fintech, insurance, IoT, mobile applications, internal tools, and cloud platforms.
My background in Flutter/Dart, C#/.NET, React/TypeScript, Azure, and CI/CD keeps me close to how software gets made. I’m especially interested in practical AI agents: workflows that reduce toil and help teams move with more clarity.